Hoist for motor vehicle parts



P 1950 L. HARDIN 2,522,267

HOIST FOR MOTOR VEHICLE PARTS Filed Aug. 4, 1948 I 4 Sheets-Sheet l HARRY L. HARmN.

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H. L. HARDIN HOIST FOR MOTOR VEHICLE PARTS Se t'. 12, 1950 4 Sheets-Sheet 2 Filed Aug. 4, 1948 w i N w B 2 9 m mm mm vm 5 mm Q N g ww mm 3 8 R 8 8 wm 6 L K o HARRY L. Hmzom, grwe/wbom.

Sept. 12, 1950 H. L. HARDIN HOIST FOR MOTOR VEHICLE PARTS 4 Sheets-Sheet 3 Filed Aug. 4, 1948 w HARRY L. HARDIN.

Sept. 12, 1950 H. HARDIN HOIST FOR MOTOR VEHICLE PARTS 4 Sheets-Sheet 4 Filed Aug. 4, 1948 HARRY L. HARDIN,

Patented Sept. 12, 1950 liars Harry'ILHardin, pharlotte, N.- C. Application August 4, 1948', Serial No. 42,499

This invention relates to a'hoist adaptedto ana Zia-1:

be supported by portions of the chassis or framework of a motor vehicle for supporting and moving" heavy assemblies of't'he motorv vehicle from out of position and'into position when it is neceswise it is avery laborious proposition, due to cramped quarters, to raise and install a new transmission or differential.

Itis an object of this invention to provides,

Figure'fiis an elevation of a cab portion of an automotive tractor with parts broken away and showing my invention in installed position; view looking along the Figure 7 is a top plan line'l-Q-TihFigur 6.

Referring more specifically to the drawings,"

the numeral I'll indicatesthe front wheelsfof a suitable trackway which'is adapted. to be dek tachalbly secured toparts of the fram'ework'of the motor vehicle suchas a tractor and. having a,hoist adapted to move' 'along the. trackway with means for securing one end of the chain which forms a part of the hoist to the differential or the transmission assembly asthe case may ,be,

sition or the bolts holding the transmission in position have been removed, the assembly; will be supported by the chain hoist andthen. the chain hoist can be moved along its trackwayto entirely remove the assembly from position astin the case of a differential, whereas in,the case of a' transmission, itcan be moved longitudinally ofthe vehicle, if desired, to avoid certain parts so when the bolts holding the differential in poand can then be lowered onto, a suitable dollie resting on the groundor pavement beneath the vehicle and it can then be removed from beneath the vehicle, and by the reverse operation, a new differential or transmission can b installed.

Some of the objects of the invention having been stated, other objects will appear as the description proceeds, when taken in, connection with the aocompanying drawings, in which c "Figure 1 is an elevation with partsinsection looking from the left-hand sido'f' Figure 2;

Figure 2 is a vertical sectional view taken along the line 2 --2 in Figure 1;

Figure 3 is a sectional plan View with parts broken away and taken along the line 3-3 in Figure 2; 4

Figure 4 is a vertical sectional; view taken along the line 4--4 in Figure 3;, v v 1 Figure 5 is a vertical sectional view taken along the line 5-5 in Figure 4;

h clutch housing by means of bolts] 46 is, secured" 'a transmission housing ,4? having a gear shift tractor while the numeral ll indicates the rear.

wheels, the rear'whe'els being mounted on suitable axles 13 disposed with axle housings [4, the X y axle housings having integraltherewith a dif.-" ferential housing 15. The tractoris also equipped with suitable, conventional leaf springs I7 and l8', which have their rear ends secured to a trans verse bolt and their front ends to stub bolts 21', which are mounted on side chassis, frame membersZ'Z and 23. These side frame members 22 and 23 usually support a fiith w heel plate 24 which is securedto the side frame member's' 22. and 23 loyany suitable means such as U-bolts25;,,

,The diifrential housing l5 houses adifierential mechanism which is secured in position I in the housing by any suitable means such as screws 3|" and shown in Figure 2 as beingpartially'removedj, Projecting from thefrontside I of this vdiife'rentialfhousing is a, differential drive shaft}? which has a connection 33 for connecting it to the rear end'of the drive shaft ex-" tending from theuniversal joint associated with the transmission mechanism'to be presently def I scribed.

The, automotive tractor is also equipped with af'suitable engine, not shown, disposedunder a hoodj lfl and is provided-with a cab having aseat sup'portframe 4| and back 42 and anjinstrument board 43. I The engine is connected at its rear I end'to a 'clutchhousing 45 which is supportedin any suitable manner such as by cross struts 44.

The, engine crank shaft, not shown, extends into the clutch housing, and to the. rear end of the lever 48 extending from the upper side thereof and provided with a cap 50 secured in position" by,means of screws 5!. A' drive ,shaft, not shown, extends from the rear end of the trans- H conventional manner.

Now, it-jso happens that when is necessary, to remove a differential assembly from the houslug l5, as heretofore pointed out, due to the great weight or the assembly, it is quite a laborious,. proposition for, ay two nechanicsrto, getunderrneath the automotive tractor and loosen the bolts 3| and to remove the difierential assembly 30, therefrom. In order to provide means for handling the differential assembly as well as the transmission assembly, I have provided a suitable 5 trackway comprising a tube 60 having a right angle clip 6| welded to its front end and having a tube 62 slidably mounted on the: rear end .of the tube 60 to. whichds welded another-right angle. clip 63. Tube 62 has a set screw 64 threaded 10 therein, which, when driven home, engages tubes BI] and holds the tubes BI] and 62 in adjusted position.

Mounted for sliding movement on-theshaman is a chain hoist mechanism, broadly indicated at 65. This chain hoist mechanismhas a SuitabIe cover 66 secured thereon, by any suitable ,means; such as screws 61, and has a pair of bars 68 and 69 extending out of the open top of thesame and havin'ga .pin' ll'mountedthereon 'on'" which is 2 mounted a roller .12 f'vvhich istadapt'ed'to :have' movement onthe shaftor'tube' 60.

The housing '65 has semi-circular openings" 15 and, J6 which are loosely penetrated'b'y'the tube 60:1 The housinghas'motatablymountedtherein a shaft".lllwhich'projects to the exterior of the, housing casing and has a universarjoint 19 "units" exterior end. whichhas a suitable wrench receive inggportion l2, which may be a male portion; as shown", or as.a femaleportion as appears in'isome typesof universaljoints, and the rightehan'd end of the shaft'10';-in Figure'5, is journaled' in ialbearzingblockjTSIsecured'to .the interior wall of the housing 35." Inside the housing 165 there is'seez cured on'theshaftilo a worm 'l twhichfis adapted to mesh with a worm gear '15 fixedlymountedon'; ash'aft .88 rotatably mounted in; bearing blocks" 'lfiiand TI on the'interior walls of the housing 65;" The shaft 80is also rotatablymounted in a .di vision wall leliorminga part iofthe housing. The shaft 80'has fixedly, secured thereon'a pul1ey .82;1 the periphery 'of whichis' so formed. as to receive" av suitable link chain 83' and. to: prevent slippage of the same. Securedtothe exterior of the 'hous-i ing 65 by any suitable means such as .a screw 85 is a Urshaped. clip BEtwhich extendsdownwardly, inwardly and. upwardlybetween the two down'-' wardlyg'depending ends of the chain83 to keep, the two ends of the chain separated at alltimes.

Now,. in order to. properly handlea differential mechanism; thertubes' Stand 62 will be disposed in the position-shown in Figures 2'and B'and'a bracket havingaleg 8 i will be secured to the front endcf the differential as by ascrewBZiand an. arcuate legportion9'3"integral'with the leg perti'on'9l will'be secured to twoprojections BBand f 891which project from the front face'ofthe' differ;-v ential mechanism by means of pins B'I'being ina. serted" through'the portion '93 and. extending into" bores in the projections" 88and 89-: Welded to the'topqsurface of the arcuate leg 9| is a pair of angle members 94 and. 95 which havet'a pin 96" passed-'therethrough, this. pin being-removable," and the'lower-end oil-the chain 83"will be passed between the uprisingportion of the angle bracke' etsfldand 95 and the pin 96 positioned as shown" in the drawings; and then all of the screws'fll can be removed and the'di'iierential mechanismcan be rolled to the left in Figure 2 completely out of the differential housing at which time'thecha'in hoist-can be' operated 'by a suitable wrenchto lower th'edifferential mechanism onto a suitable dolli'e disposed 'on theground or'it could be depos lted "ontoa. canvas or other means for rernoving 1 it from"beneath-thetraetor;

In the event that a transmission mechanism is desired to be handled, the tube 60 will be placed on top of the instrument board 43 and the tube 62 will be placed on top of the seat back 42 and one of the bolts 5| will be removed from the transmission cover and employed for securing a bracket 91 in position and this bracket has se cured thereto oneend oi a cable 98, and the other endfof the'cablethas a ringior washer. SQ-thereon which is secured over a shaft I00 to which the brake lever is usually secured and this washer 99 will be secured in position by means of a screw I015 Then-a-suitable hooked member I02 will behookedsbeneath the cable 98 and its other end .hooked into a link of chain 83 and then with the screws w removed and the universal joint disposedlwithin the brake drum 52 disconnected,

the transmission housing can be lowered to the ground or. onto a.dollie disposed underneath .the

same"? installingna new differential mechani'srm 01'? a new transmissionfhousingg"the. sameprocedureias above"? outlined will be'empioyed' except'ithat" th'e operatiomwill bereversed:

In the drawings and specificati'on'there' has" been set forth a" preferredembodiment of the invention,"andalthough specific terms. areem-. pl'oyedg they-*are'used-in a generic and descrip== tive sense'only' and' not for purposes :oflimitm tion; the scope"of'=the"invention beingideflnedf iii-"the" claim;

Apparatus for handling" heavy assemblies in automotive vehicles, such as transmissions," dii ferentials'; an'dth e lilrdcomprisihg two elongated members telescopically mounted "with 'relation to: each other; each member having :an-- uprising'ciip'. secured thereto, the clips'havin'gtheir'upperends projecting towards each other and" adapted to rest-'on opp'osed edges of a-suitable' support,"ab"ove 1' the assembly to be' removed" or installed; a chain.

hoistmounted for "rolling movement alcngithe' telescopic member and having" a 'chaimdepending' therefrom;"-mean's extending from thechain hoist and having a wrench receivingportionwhereby? a wrench can be appli'ed to,the chain"hbist tof" raise -or=-lower --the lower "end of "the chair'rde'; :1 pendingfrom -the chainhoist, means for attach ing-=-the'--lower= endof the" chain hoist to theas-"f sembly'to be" removed or installed-- and whereby) when" the-assembly "is nee "from the automotive vehicle it can be -movedlongitudinally of the elongated membersand-lowered 'in removing :the" assembly; and whereby-anew assemblycan be enga'ged'by the *lower end of--the chain-and raised" tci=theproper-elevation and then-the chain hoist can--- be moved longitudinally of thechain hois't' member-to cause the assembly to" be inserted in? position -and supported "in that position until see cured-thereim' HARRY 'L';

REFERENCES CITED The following 'referencesrare of-"record inthe r of thisf'patentrt." 1

UNITED STATES F PATENTS 

